NH
3
R
ESPONDER
Operating Manual
17
Specifications
Instrument dimensions:
5.7” x 2.9” x 1.5”
Weight:
13.1 oz.
Humidity:
PID sensor: 0 – 95% relative humidity (non-condensing)
LEL sensor: 5 – 95% relative humidity (non-condensing)
Alarm setpoints:
May vary by region and are user-
settable.
Detection range:
PID sensor: 0 – 1000 ppm (1.0 ppm increments)
LEL sensor: 3 – 100% LEL (1% LEL increments) or
Sensor type:
PID sensor: Photoionization detector (PID)
LEL sensor: Plug-in catalytic bead
Alarm conditions:
TWA alarm, STEL alarm, low
alarm, high alarm, multi-gas alarm, over range alarm,
sensor alarm, pump alarm, low battery alarm,
confidence beep, automatic shutdown alarm
Audible alarm:
95 dB at 1 ft. variable pulsed dual
beepers
Visual alarm:
Dual red light-emitting diodes (LED)
Display:
Alphanumeric liquid crystal display (LCD)
Backlight:
Automatically activates whenever there is
insufficient light to view the LCD (if enabled) and during
alarm conditions.
Self-test:
Initiated upon activation
Calibration:
Every 6 months, minimum
User field options:
Confidence beep, latching low and
high alarms, pass code protection, enable/disable safe
display mode, enable/disable fast pump, combustible
sensor measurement, sensor disable, TWA and STEL,
language selection, set span concentration values, set
STEL calculation period, set TWA method, gas
measurement resolution, enable/disable automatic
backlight, adjust clock calendar, and set logging rate
(datalogger models only).
Battery operating time:
8 hours typical depending on
backlight activation.
Warranty:
1 year including sensors
Approvals:
Approved by CSA to both U.S. and
Canadian Standards
Approved:
Class l, Division 1, Group A, B, C, and D;
Class l, Zone 0, Group llC
Standards:
CAN/CSA C22.2 No. 157 and C22.2 152
ANSI/UL – 913 and ANSI/ISA – S12.13 Part 1
