Specifications |
Electric |
Power supply |
24 VAC/VDC, -20%/+15% 50/60 Hz, reverse polarity protected |
Power consumption |
5 VA (0.2 A) w/ (1) remote sensor connected |
Sensor Performance |
Gas detected |
Ammonia (NH3) |
Sensor element |
Electrochemical, diffusion |
Range |
0-300 ppm or 0-1000 ppm, fixed
“refer to Ordering Information” |
Resolution |
4.0 ppm |
Repeatability |
± 3.0 % of reading |
Long term output drift |
< 5% / 6 months |
Response time |
t90 < 35 sec. |
Sensor life expectancy |
2 years, normal operating environment |
Sensor coverage |
2,000 sq. ft., max 3,000 sq. ft. (180 m2, max 280 m2), under “ideal conditions” |
Installation Location |
Mounting height |
1 ft. (0.3 m) below ceiling |
Type of Control |
General |
Four-stage (S1 to S4) control,
assignable up to two (2) binary/
relay, horn/audible alarm, and
24 VDC / 50 mA switched
outputs, i.e. low-high stage for
relay output, horn / audible alarm
and switched 24 VDC at any
stage for remote alarming |
Analog input |
One (1) 4-20 mA, for additional
remote sensor, load < 55 mA /
200 Ω, reverse polarity protected |
Analog reading |
Current and mean (average)
value |
Stage level / setpoint |
Field adjustable over full range,
four (4) stages (S1 to S4) per
analog input, assignable to
current or mean (average) value |
- hysteresis/
switching differential |
Selectable for each sensor point |
Digital input |
One (1); can be assigned to any
relay (R1, R2) |
- application |
Remote audio/visual alarm reset
or override function |
Type of Control (cont...) |
Relay outputs (R1, R2) w/ status LEDs |
(1) SPDT (R1), and (1) SPST-NC or SPST-NO (R2), jumper selectable |
Contact rating -each stage level (S1-S4)-sensor fail-safe |
30 VAC/VDC, 0.5 A, max. Assignable to any relay Assignable to any stage level |
Time delay switching |
Selectable for make and brake of each sensor point (SP1 to SP2) 0‐9,999 seconds |
Analog output |
One (1), (0)4‐20 mA, load < 500 Ω;(0)2-10 VDC, load > 50K Ω; jumper selectable; polarity protected, assignable to low, high or averaging of sensor inputs |
VDC switched output |
One (1) 24 VDC, 50 mA max |
Audible alarm |
83 db @ unit, enabled or disabled, selectable; assignable to stage level S1, S2, S3 or S4 |
Alarm acknowledgment |
Menu-driven and system reset function for latched relays |
User Interface |
Keypad type |
Refer to illustration “Keypad User
Interface” |
Touch buttons |
Four (4) |
Status LED’s |
Four (4), for system on, stage status, and failure |
Digital display |
Liquid Crystal Display (LCD), two lines, 16 characters per line, 1 digit resolution |
-unit display |
Menu selectable, per sensor; ppm, %v/v, %LEL, °F or %RH |
Environmental |
Permissible ambient |
|
-working temperature |
14°F to 122°F (-10°C to 50°C) |
-storage temperature |
23°F to 86°F (-5°C to 30°C) |
-humidity |
15 to 95% RH, non-condensing |
-working pressure |
Atmospheric ± 10% |
Physical |
Enclosure (panel) |
|
-material |
Polycarbonate, UL 94-HB, fire-retardant |
-conformity |
UL 50 standards |
-color |
Light gray |
-protection |
NEMA 4X (IP65) |
-installation |
Wall (surface) mounted, or single gang electrical box |
Dimensions (H x W x D) |
5.12 x 5.12 x 2.95 in. |
Wire connection |
Terminal blocks, screw type for lead wire |
Wire size |
Min. 24 AWG (0.25 mm 2 ) Max 14 AWG (2.5 mm 2 ) |
Wire distance |
Max. loop resistance 450 Ω (= wire distance plus controller input resistance) |
Weight |
0.6 lb. (0.3 kg) |
Approvals / Listings |
-unit rating |
NRTL Certification to STD ANSI/UL 61010-1 CE EMV-Compliance 2004/108/EWG Low voltage directive 73/23/EWG |
-relays (R1-R2) |
UL Recognized, E41515 CSA, C22.2 No. 0, No. 14 (File No. LR31928) |
-enclosure |
UL Listed, E208470 CSA Certified, E208470 |
Warranty |
Two years material and workmanship, 12 months normal exposure for sensor element |