Honeywell Manning EC-P2 installation manual Operation, AOperating the Sensor

2 Operation

AOperating the Sensor

The Manning EC-P2 is shipped ready for use. To power up the instrument, push the PWR button. The power up sequence displays first the self check, the sensor full scale value, the downscale caution level, warning concentration setpoint, alarm concentration setpoint, output ranges, software version, then the normal operating screen.

The unit will then display the instantaneous gas concentration and is ready for use.

The normal operating screen displays the information as shown in Figure 2.

The Manning EC-P2 is designed to avoid accidental shut-off of the power. To turn the unit off, the PWR

button must be held down for approximately three

seconds. Release the button after the “Power Down” message appears.

BChanging the Target Gas using SMART-CELL Technology

The Manning EC-P2 can easily be changed to sense another target gas by installing the SMART-CELL for the desired target gas. Each SMART-CELL contains all the calibration and alarm setpoint information on its internal memory chip, so recalibration or reprogramming is not necessary when changing the Manning EC-P2 from one gas to another. This procedure can be performed with the unit powered on or off (see Figure 3).

1)Unscrew the two stainless steel thumbscrews and remove the black inlet / outlet manifold lid from the back of the unit.

2)To remove the existing SMART-CELL, grip the sides of the cell and pull it straight out.

3)Install the desired SMART-CELL by gently inserting it into the socket. Notice that the SMART-CELL is keyed so it cannot be inserted incorrectly.

4)Replace the manifold and hand tighten the thumbscrews.

5) Verify proper flow through the sampling wand using the flowmeter provided.

Extra SMART-CELLS should be kept on the optional sensor keeper when not in use to

keep them “warmed up” and ready for immediate use. The sensor keeper is powered by an Alkaline “C” size battery which should be replaced every 6 months.

For a variety of target gases, see page 15 for a list of available SMART-CELLs. Contact Honeywell Analytics if the desired target gas is not listed, as new cells may be available.

Figure 2: Normal Operating Screen

BATTERY IN USE	CURRENT GAS CONCENTRATION
P = Primary (“C” cell)	(Blinking indicates sensor over range)
S = Standby (Internal NiCad)	TARGET GAS
Flashing indicates low battery
	SMART-CELL dependent

P	0	PPM
		NH3
A
OFF	MENU SMPL

Battery Light

Power

ADVANCED FEATURES ONLY

Do not push for normal operation

ALARM INDICATION CODE

Blank = No alarm condition present

C = Caution—Cell has excessive zero downdrift

W = Warning—Gas concentration has exceeded warning level

A = Alarm—Gas concentration has exceeded alarm level

P = Pump trouble

Lg = Data logging in progress

Manning EC-P2 Sensor 19546 ECP2 07/09 REVG Copyright © 2009 Honeywell Analytics. All Rights Reserved. 7