| 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 |
Oxygen (O2) |
| Sensor element |
Electrochemical, diffusion |
| Range |
0-25 %, air by volume |
| Accuracy & Resolution |
0.1 % |
| Repeatability |
< 0.1 % of reading |
| Long term output drift |
< 4% of reading / year |
| Response time |
t90 < 15 sec. |
| Sensor life expectancy |
2 years, normal operating
environment |
| Sensor coverage |
2,500 sq. ft., max 5,000 sq. ft. (232 m 2 , max 464 m 2 ), under “ideal conditions” |
| Installation Location |
| Mounting height |
5 to 6 ft. (1.5-1.8 m) above floor |
| 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. (130 x 130 x 75 mm) |
| Cable entry |
3 holes for 1/2 in. conduit for wall (surface) mounting and 1 hole on back side of base plate for single gang electrical box mounting |
| 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 |
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