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2 Operation
A Operating the Sensor
Figure 2: Normal Operating Screen
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.
B Changing 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.
MENU SMPL
PPM
NH
3
OFF
0
P
A
Power
BATTERY IN USE
P = Primary (“C” cell)
S = Standby (Internal NiCad)
Flashing indicates low battery
CURRENT GAS CONCENTRATION
(Blinking indicates sensor over range)
TARGET GAS
SMART-CELL dependent
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
Battery Light
Manning EC-P2 Sensor 19546 ECP2 07/09 REVG Copyright © 2009 Honeywell Analytics. All Rights Reserved. 7