BW Technologies NH3 RESPONDER Quick Reference Manual

QUICK REFERENCE GUIDE

NH3 RESPONDER

Portable Ammonia Leak Detector

NH3 RESPONDER

Operating Manual

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Specially configured

GasAlert Micro 5 PID

from

NH3 RESPONDER

Operating Manual

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Table of Contents

Getting Started …………………………………… 4
Activating the Detector………………………… 6
Self-Test ………………………………………... 6
Deactivating the Detector …………………….. 6
User Options Menu ………………………………. 6
Options Menu …………………………………. 6
Backlight …………………………………….. 7
Confidence Beep …………………………… 7
Due-Lock ……………………………………. 7
Latched Alarms …………………………….. 7
Passcode Protect ………………………….. 7
Safe Display ………………………………… 7
Fast Pump ………………………………….. 7
Sensor Configuration ……………………….… 8
Sensor Enable/Disable…………………….. 8
Span Gas Value…………………………….. 8
Correction Factor…..……………………….. 9
Datalogger………….….……………………….. 9

Alarms……………………….…………………. 10
Viewing Gas Exposures …………………….. 10
Clearing Gas Exposures ……………………. 10
Gas Alarm Setpoints ………………………… 10
Viewing the Alarm Setpoints ……………….. 10
Stopping a Gas Alarm ………………………. 11
Pump Alarm ………………………………….. 11
Low Battery Alarm……………………………. 11
Calibration and Setting Alarm Setpoints ……... 12
Guidelines ……………………………………. 12
Calibration Procedure ……………………….. 12
Maintenance …………………………………….. 14
Replacing the Batteries ……………………... 14
Replacing a Sensor ………… ………………. 14
Cross Sensitivity and Contamination…….……. 15
Troubleshooting ………………………………… 16
Specifications …………………………………… 17
Warranty…………………………………………..18

Calibration Technologies 866-394-5861

920 N. Trade Winds Pkwy, Columbia, MO 65201

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Operating Manual

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Getting Started

The NH3 Responder detector is especially configured
for ammonia response operations. It utilizes two sensor
technologies to cover the ranges of interest in an
ammonia response operation. The first sensor is a PID
sensor, which is configured to display ammonia
concentration readings in the range of 0-1000 ppm.
Over 1000 ppm this sensor displays OL and the LEL
sensor is configured to display %LEL readings for the
explosive levels decision making range. (10% LEL =
15,000 ppm NH3). Note that there is a 3,500 ppm gap
from where the PID sensor leaves off at 1000 ppm and
where the LEL sensor starts displaying at 3% LEL.

Additionally, the PID sensor has an extremely fast
response time and is useful for finding small ammonia
leaks. Think of it as an “electronic sulfur stick” for
locating difficult to find leaks by “sniffing” around valve
packing, sight glasses, shaft seals, etc.

OSHA recommends to bump test the sensor before
each day’s use to confirm its ability to respond to gas by
exposing the detector to a gas concentration that
exceeds the alarm setpoints. Manually verify that the
audible and visual alarms are activated. Calibrate the
sensor if the reading is not within the specified limits.

Note:

Upon startup of the unit (every time it is
powered up) it performs a pump test to check
for proper flow. A message will appear
“Block Inlet”, requiring you to block the inlet
with your finger.

Also, at any time during the operation of the
unit the air flow sensor detects a significant
change, it will initiate a pump test and require
you to block the inlet again. This is normal
and shouldn’t be interpreted that the inlet is
blocked.

See Self-Test section on page 6 for more
details.

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Table 1. Pushbutton Operations

Pushbutton Description

• To turn on the detector press .

• To turn off the detector, press and hold until the countdown is complete (from normal

operation only).

• To increment the displayed value or scroll up, press .

• To enter the user options menu, press and simultaneously and hold until the countdown

is complete.

• To clear the TWA, STEL, and MAX gas exposure readings, press and simultaneously
and hold until the countdown is complete.

• To view the date and time, alarm setpoints (TWA, STEL, low, and high) of all sensors, and the

LEL/PID correction factor, press .

• To decrement the displayed value or scroll down, press .

• To initiate calibration and setting alarm setpoints, press and simultaneously and hold

until the countdown is complete.

• To view the TWA, STEL, and MAX hold readings, press .

• To acknowledge latched alarms press .

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Activating the detector

To activate the detector press .

Self-Test

Once the detector is activated, it performs self-tests on
the sensors, battery, audible visual alarms and circuit
integrity.

Note: During the pump test the unit will prompt you
to block the inlet to the pump. Create a tight seal
with your finger over the inlet until the block-inlet
test is complete (approx 5 seconds).

Deactivating the detector

To deactivate the detector, press and hold while it
beeps and flashes to the corresponding countdown. At
the end of the countdown the detector emits an
extended beep and flash, and displays 0 before
deactivating.

User Options Menu

If the detector is passcode protected, a passcode must
be entered to access the user options menu. For more
information, refer to Passcode Protect.
The available user options are as follows:

1. Exit

2. Options: backlight, confidence beep, due-lock,
latch, passcode, safe, and fast pump;

3. Sensors: sensor enable/disable, span gas, STEL
period, TWA method, resolution, % vol CH4,
correction factor, and automatic O2 calibration;

4. Logger

5. Clock

6. Language: English, French, German, Spanish, and
Portuguese;

To enter the user options menu, press and hold and

simultaneously as the detector beeps and flashes to

the corresponding countdown.

Options Menu

Each feature within the Options menu is enabled or

disabled by pressing to toggle the checkbox.