0 operation recon/4 – ENMET RECON/4 User Manual

Page 6

RECON/4

ENMET Corporation

3.0 Operation

RECON/4

AUTION

RECON/4

is set to auto zero calibrate after turning on. Turn on the

RECON/4

in clean air. Incorrect readings will

occur if the

RECON/4

is turned on in contaminated air.

3.1 Activate RECON/4

Press and hold the button for 1second and then release it. After the buzzer gives a short sound once, the

RECON/4

is on.

The

RECON/4

will display

ENMET

information and run a self test.

The display will indicate “Starting Warming up” with each test listed below
Example: Alarm, Vibrator, “High alarm”, “Low alarm”, “STEL” and “TWA”.

After that, it enters detecting status. At this time, it displays the concentration of O2, H2S, CO and Combustible gas in the
environment.

3.1.1 Display Conservation

Following the warm up, to conserve battery life, the display will fade to black in about 30 seconds. An audio confidence
“chirp” will activate every 3 minutes to indicate the

RECON/4

is active.

OTE

Pressing the button or any gas detected event will recall the display.

3.2 Deactivate RECON/4

To turn the

RECON/4

off, press and hold the button for 3 seconds, the buzzer gives a short sound twice and long sound once.

The

RECON/4

is now off.

3.3 RECON/4 Alarm

(1) When the gas concentration reaches the preset alarm levels, the

RECON/4

will activate relative alarms:

The LED lights flash, audio alarm sounds and vibratory alarm activates.

The user can cancel audio and vibratory alarm by pressing and releasing the button: The first press will cancel audio alarm, and
the second to cancel vibration.

(2) When the

RECON/4

is kept in an environment with the target toxic gas, if the gas concentration is more than the maximum

average level of TWA or STEL, the

RECON/4

will give TWA or STEL alert. At this time, the user can also cancel the audio

and vibratory alarming by pressing the button as described in above Section (1).

Alarms sound when its sensor faults or at low battery status. Please refer to the LCD display for details.

3.4 RECON/4 Status Check

When the

RECON/4

is on and in non-alarm status, press and release the button, the LCD screen will display max. gas level and

min. level*, STEL**, TWA**, current time, serial number(SN) and version number(VER) in turn.

OTE

*Only O2 sensor has such indication.

**Only toxic gas sensors have STEL and TWA alert.

3.5 RECON/4 Battery Charging

When the battery voltage is low, the

RECON/4

will not function properly. To recharge the batteries of the

RECON/4:

The

RECON/4

must be Off, connect the AC connector plugs of the charger to a 110

or 220

outlet and plug the charging

cable into the

RECON/4

. The detector will activate automatically and indicates that it is being charged. When the charging

cycle is completed, the display will indicate full charge.

ARNING

start the battery

charge process with the

RECON/4

power on; otherwise the charge speed will be

adversely affected. Always charge the battery in normal ambient air. Do not charge the

RECON/4

in a

hazardous area to be monitored, to avoid fire or explosion. Disconnect the charger after 24 hours, failure to do
so will damage the battery.