Simplex TrueAlarm Analog Sensors: Photoelectric and Heat, Standard Bases and Accessories
Features
TrueAlarm analog sensing
TrueAlarm analog sensing enables digital transmission of analog sensor values via IDNet or MAPNET II two-wire communications. It is compatible with Simplex fire alarm control units (FACUs) such as the 4007ES, 4010, 4010ES, 4100ES, 4100U series, and 4008 series (with reduced features). It also supports 4020, 4100, 4120 series FACUs, Universal Transponders, and 2120 TrueAlarm CDTs equipped for MAPNET II.
Key features include:
- Peak value logging for accurate analysis and individual sensitivity selection.
- Sensitivity monitoring compliant with NFPA 72 requirements.
- Automatic individual sensor calibration check for integrity verification.
- Automatic environmental compensation, multi-stage alarm operation, and sensitivity displayed in percent per foot.
- Ability to display and print detailed sensor information in English.
Photoelectric smoke sensors features
Sensitivity levels range from 0.2% to 3.1%. Refer to TrueAlarm sensors for more information.
Heat sensors features
- Three fixed temperature sensing thresholds: 135°F, 155°F, and 190°F.
- Rate-of-rise temperature sensing capability.
- Utility temperature sensing capability.
- Listed to UL 521 and ULC-S530 standards.
General features
- Suitable for ceiling or wall mounting.
- Listed to UL 268 7th Edition and ULC-S529 standards.
- NEMA 1 rated. Consult the TrueAlarm analog sensing product selection chart for details.
- Louvered smoke sensor design enhances smoke capture by directing airflow to the chamber, with minimally visible entrance areas when ceiling mounted.
- Designed for EMI compatibility.
- Supports magnetic testing.
- Various bases are available to support supervised or unsupervised output relays, or a remote LED alarm indicator.
Additional base reference
- For isolator bases, refer to data sheet S4098-0025.
- For isolator2 bases, refer to data sheet S4098-0026.
- For sounder bases, refer to data sheet S4098-0028.
- For photo/heat sensors, refer to data sheets S4098-0024 (single address) and S4098-0033 (dual address).
Description
Digital communication of analog sensing
TrueAlarm analog sensors provide an analog measurement that is digitally communicated to the host control panel using Simplex addressable communications. The control unit analyzes this data, determines an average value, stores it, and compares the sensor's present value against its average and time to detect an alarm or other abnormal condition.
Intelligent data evaluation
Monitoring each sensor's average value creates a continuously shifting reference point. A software filtering process compensates for environmental factors like dust, dirt, and component aging, ensuring an accurate reference for evaluating new activity. This minimizes false or nuisance alarms caused by sensitivity shifts.
Control unit selection
The control unit stores peak activity for each sensor to evaluate specific locations. The host control unit sets the alarm set point for each TrueAlarm sensor, allowing for adjustable sensitivity based on application needs.
Timed/multi-stage selection
Sensor alarm set points can be programmed for timed automatic sensitivity selection (e.g., more sensitive at night, less sensitive during the day). The control unit can also be programmed for multi-stage operation for each sensor.
Sensor alarm and trouble LED indication
Each sensor base's LED pulses to indicate communication with the unit. If the control unit detects an alarm, dirt, or other trouble condition for a sensor, the details are displayed on the control unit, and the sensor's base LED turns on steadily. During a system alarm, a trouble LED returns to pulsing to help identify the alarmed sensors.
TrueAlarm sensor bases and accessories
Sensor base features
- Base mounted address selection: Address remains with its programmed location and is accessible from the front via a DIP switch under the sensor.
- General features: Automatic identification provides default sensitivity when substituting sensor types. Features an integral red LED for power-on (pulsing) or alarm/trouble (steady). Includes a locking anti-tamper design that mounts on a standard outlet box. Supports magnetically-operated functional testing.
Sensor bases
4098-9792, standard sensor base
4098-9789, sensor base with wired connections
Supports 2098-9808 remote LED alarm indicator or 4098-9822 relay. The relay is unsupervised and requires a separate 24 VDC supply.
Supervised relay bases (not compatible with 2120 CDT)
- 4098-9791: Four-wire sensor base, used with remote or locally mounted 2098-9737 relay, requires separate 24 VDC.
- 4098-9780: Two-wire sensor base, used with remote or locally mounted 4098-9860 relay, no separate power required. Allows programming of supervised relay operation and manual operation from the control unit. Includes wired connections for remote LED alarm indicator or 4098-9822 relay; the relay is unsupervised and requires a separate 24 VDC supply.
Sensor base options
2098-9737, remote or local mount supervised relay
- DPDT contacts for resistive or suppressed loads.
- Power limited rating: 3 A at 28 VDC.
- Non-power limited rating: 3 A at 120 VAC, requires external 24 VDC coil power.
4098-9860, remote or local mount supervised relay
- SPDT dry contacts.
- Power limited rating: 2 A at 30 VDC, resistive.
- Non-power limited rating: 0.5 A at 125 VAC, resistive.
4098-9822, LED annunciation relay
- Activates when the base LED is steady, indicating a local alarm or trouble.
- DPDT contacts for resistive or suppressed loads.
- Power limited rating: 2 A at 28 VDC.
- Non-power limited rating: 1/2 A at 120 VAC, requires external 24 VDC coil power.
4098-9832, adapter plate
Required for surface or semi-flush mounting to a 4-inch square electrical box and for surface mounting to a 4-inch octagonal box. This adapter plate can be used for cosmetic retrofitting to an existing 6-3/8 inch diameter base product.
2098-9808, remote red LED alarm indicator
Mounts on a single gang box.
Figure 2: Remote red LED alarm indicator. This image shows the 2098-9808 remote red LED alarm indicator, typically mounted on a single gang box.
Users can change TrueAlarm sensor types to meet location requirements, facilitating sensor substitution during building construction. For instance, heat sensors can be installed in dusty conditions without reprogramming the control unit, providing heat detection for building protection even if the control unit indicates an incorrect sensor type.
Mounting reference
Figure 3: Mounting reference. This illustration details electrical box requirements for sensor bases, specifying dimensions for boxes with and without relays, and for octagonal or square types.
Description
TrueAlarm sensor bases contain integral addressable electronics that monitor the status of detachable photoelectric or heat sensors. The sensors transmit digitalized output to the system fire alarm control unit every four seconds.
Table 1: Product mounting - SKU reference
| Product | SKU |
|---|---|
| Relay | 4098-9822 |
| Supervised relay | Example 1: 2098-9739, Example 2: 4098-9860 |
| Adapter plate | 4098-9832 |
| TrueAlarm bases | 4098-9780, 4098-9789, 4098-9791, 4098-9792 |
TrueAlarm sensors
Features
- Sealed against rear air flow entry.
- Interchangeable mounting.
- EMI/RFI shielded electronics.
- Heat sensors: Selectable rate-compensated, fixed temperature sensing with or without rate-of-rise operation.
Table 2: Rated spacing distance between sensors
| Fixed Temp. Setting | UL and ULC Spacing | FM Spacing, Either Fixed Temperature Setting |
|---|---|---|
| 135°F (57.2°C) | 60 ft x 60 ft (18.3 m) | 20 ft x 20 ft (6.1 m) for fixed temperature only. RTI = Quick |
| 155°F (68°C) | 40 ft x 40 ft (12.2 m) | 50 ft x 50 ft (15.2 m) for fixed temperature with either rate-of-rise selection. RTI = Ultra Fast |
| 190°F (88°C) | (Not specified for UL/ULC) | (Not specified for FM) |
Note: 190°F (88°C) ratings only apply to the 4098-9734 sensor.
Smoke sensors
- Photoelectric technology sensing.
- 360° smoke entry for optimum response.
- Built-in insect screens.
4098-9714 photoelectric sensor
TrueAlarm photoelectric sensors utilize a stable, pulsed LED light source and a silicon photodiode receiver for low power smoke sensing. They offer three user-selectable sensitivities for special applications: 0.2%, 0.5%, and 1% per foot. Standard sensitivity is 1.25% to 3.1% per foot. The fire alarm control unit can adjust sensitivity for normal applications between 1.25% and 3.1% per foot.
Note: Fixed sensitivity settings above 1.0% per foot are not UL268 7th Edition compliant.
The sensor head design provides 360° smoke entry for response from any direction. Air velocity is generally not a factor due to its photoelectric operation, except when it impacts area smoke flow.
Figure 4: 4098-9714 photoelectric sensor with base. This diagram shows the 4098-9714 photoelectric sensor mounted in its base, with dimensions indicated: 4-7/8 inches (124 mm) diameter and 2-1/8 inches (54 mm) depth. An LED status indicator is also shown.
4098-9733 and 4098-9734 heat sensors
TrueAlarm heat sensors are self-restoring and provide rate-compensated, fixed temperature sensing, with or without rate-of-rise temperature sensing. The sensor measures local temperature for analysis by the fire alarm control unit. Rate-of-rise temperature detection can be selected at the control unit for 15°F or 20°F (8.3°C or 11.1°C) per minute. Fixed temperature sensing is independent of rate-of-rise sensing and can be programmed to operate at 135°F or 155°F (57.2°C or 68°C). The 4098-9734 sensor offers an additional 190°F (88°C) set point.
In a slowly developing fire, the temperature may not rise rapidly enough for the rate-of-rise feature. However, when the temperature reaches the rated fixed temperature setting, it triggers an alarm.
TrueAlarm heat sensors can be programmed as a utility device to monitor temperature extremes between 32°F and 155°F (0°C to 68°C), useful for freeze warnings or HVAC system problems. Refer to panel specifications for availability.
Figure 5: 4098-9733 heat sensor with base. This diagram shows the 4098-9733 heat sensor mounted in its base, with dimensions indicated: 4-7/8 inches (124 mm) diameter and 2-3/8 inches (60 mm) depth. An LED status indicator is also shown.
Figure 6: 4098-9734 high temperature heat sensor with base. This diagram shows the 4098-9734 heat sensor mounted in its base, with dimensions indicated: 4-7/8 inches (124 mm) diameter and 2-3/8 inches (60 mm) depth. An LED status indicator is also shown.
WARNING: In most fires, hazardous levels of smoke and toxic gas can build up before a heat detection device would initiate an alarm. In cases where Life Safety is a factor, the use of smoke detection is highly recommended.
Application reference
Sensor locations should be chosen after careful consideration of the physical layout and contents of the area to be protected. Refer to NFPA 72, the National Fire Alarm and Signaling Code. For smooth ceilings, smoke sensor spacing of 30 ft (9.1 m) can be used as a guide.
For detailed application information, including sensitivity selection, refer to the 4098 Detectors, Sensors, and Bases Application Manual (574-709).
TrueAlarm analog sensing product selection chart
Table 3: TrueAlarm sensor bases, for use with sensors 4098-9714 and 4098-9733
| SKU | Color | Description | Compatibility | Mounting requirements |
|---|---|---|---|---|
| 4098-9792 | White | Standard sensor base | No options | 4 in. octagonal or 4 in. square box, 1 1/2 in. min. depth, or single gang box, 2 in. min. depth |
| 4098-9776 | Black | Sensor base with connections for remote LED alarm indicator or unsupervised relay | 2098-9808 remote alarm indicator or 4098-9822 unsupervised relay | 4 in. octagonal or 4 in. square box |
| 4098-9789 | White | |||
| 4098-9789IND | Black | Four-wire sensor supervised relay base with connections for LED indicator or unsupervised relay | 2098-9737 supervised remote relay | Note: Box depth requirements depend on total wire count and wire size. See Table 5 |
| 4098-9775 | Black | |||
| 4098-9791 | White | Two-wire sensor supervised relay base with connections for LED indicator or unsupervised relay | 4098-9860 supervised remote relay | |
| Note: NOT compatible with the 2120 CDT | White | |||
| 4098-9780 | White | Two-wire sensor supervised relay base with connections for LED indicator or unsupervised relay | 2098-9808 remote alarm indicator or 4098-9822 unsupervised relay | |
| Note: NOT compatible with the 2120 CDT | White |
Note: SKU numbers ending in IND are assembled in India.
Refer to 4098 Detectors, Sensors, and Bases Application Manual (574-709) and 4098 Smoke/Heat Sensor Bases Installation Instructions (574-707) for additional information.
Table 4: TrueAlarm sensors
| SKU | Color | Description | Compatibility | Mounting requirements |
|---|---|---|---|---|
| 4098-9714 | White | Photoelectric smoke sensor | Bases 4098-9775, 4098-9776, 4098-9792, 4098-9789, 4098-9791, and 4098-9780 | Refer to base requirements |
| 4098-9714-IND | Black | |||
| 4098-9774 | White | Heat sensor | ||
| 4098-9733 | Black | |||
| 4098-9778 | White | High temperature heat sensor | Bases 4098-9775, 4098-9776, 4098-9792, 4098-9789, 4098-9791, and 4098-9780 | Refer to base requirements |
| 4098-9734 | White |
Note:
- SKUs are NEMA 1 rated.
- The 4098-9734 Heat Sensor is only compatible with IDNet on the 4100ES, 4010ES, and 4007ES.
Table 5: TrueAlarm sensor and base accessories
| SKU | Description | Compatibility | Mounting requirements |
|---|---|---|---|
| 2098-9737 | Supervised relay, mounts remote or in base electrical box | 4098-9791 base | Remote mounting requires 4 in. octagonal or 4 in. square box, 1 1/2 in. minimum depth. Base mounting requires 4 in. octagonal box, 2 1/8 in. deep with 1 1/2 in. extension ring. |
| 4098-9860 | Supervised relay, mounts remote or in base electrical box | 4098-9780 base | Remote mounting requires 4 in. octagonal or 4 in. square box, 1 1/2 in. minimum depth. Base mounting requires 4 in. octagonal box, 2 1/8 in. deep with 1 1/2 in. extension ring. |
| 2098-9808 | Remote red LED alarm indicator on single gang stainless steel plate | Bases 4098-9789, 4098-9791, and 4098-9780 | Single gang box, 1 1/2 in. minimum depth |
| 4098-9822 | Unsupervised relay, tracks base LED status. Note: Only mounts in base electrical box. | Bases 4098-9789, 4098-9791, and 4098-9780 | 4 in. octagonal box, 2 1/8 in. deep with 1 1/2 in. extension ring |
| 4098-9832 | Adapter plate | Bases 4098-9792, 4098-9789, 4098-9791, and 4098-9780 | Required for surface or semi-flush mounted 4 in. square box and for surface mounted 4 in. octagonal box |
Note: 2098-9808 is NEMA 1 rated.
Specifications
Table 6: General operating specifications
| Specification | Rating |
|---|---|
| Communications and sensor supervisory power | IDNet or MAPNET II communications, auto-selected, one address for each base |
| Communications connections | Screw terminals for in/out wiring, 18 to 14 AWG, 0.82 mm² to 2.08 mm² |
| Remote LED alarm indicator current | 1 mA typical, no impact to alarm current |
| Remote LED alarm indicator and relay connections | Color coded wire leads, 18 AWG, 0.82 mm² |
| UL listed operating temperature range | 32°F to 100°F, 0°C to 38°C |
| Operating temperature range | With 4098-9714 Smoke Sensor: 15°F to 122°F, -9°C to 50°C With 4098-9733 Heat Sensor: 32°F to 122°F, 0°C to 50°C With 4098-9734 Heat Sensor: 32°F to 150°F, 0°C to 66°C |
| Storage temperature range | 0°F to 140°F, -18°C to 60°C |
| Humidity range | 10% to 95% RH |
| 4098-9714 smoke sensor air velocity rating | 0 to 4000 ft/min, 0 to 1220 m/min |
| Housing color | Frost white or black |
Table 7: 4098-9791 Base with supervised remote relay 2098-9737
| Specification | Rating |
|---|---|
| Externally supplied relay coil voltage | 18 VDC to 32 VDC, nominal 24 VDC |
| Supervisory current | 270 μA, from 24 VDC supply |
| Alarm current with 2098-9737 relay | 28 mA, from 24 VDC supply |
Note: See Sensor base options for contact ratings.
Table 8: 4098-9780 Base with supervised remote relay 4098-9860
| Specification | Rating |
|---|---|
| Power | Supplied from communications |
Table 9: 4098-9822 Unsupervised relay, requirements for bases 4098-9789, 4098-9791, and 4098-9780
| Specification | Rating |
|---|---|
| Externally supplied relay coil voltage | 18 VDC to 32 VDC, nominal 24 VDC |
| Supervisory current | Supplied from communications |
| Alarm current | 13 mA from separate 24 VDC supply |
Note: See Sensor base options for contact ratings.
© 2023 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision and are subject to change without notice. Additional listings may be applicable, contact your local Simplex® product supplier for the latest status. Listings and approvals under Simplex Time Recorder Co. Simplex, and the product names listed in this material are marks or registered marks. Unauthorized use is strictly prohibited. NFPA 72 and National Fire Alarm Code are registered trademarks of the National Fire Protection Association (NFPA).
