ISSUE #1 MAY 1990
DS-8962
detector. (See Figures 3 & 4)
(See Figure 2)
on this mV scale is 1999 feet or meters (disregarding decimal point at all times). For Protectowire
for every foot (or meter) to be measured from the start of the Protectowire run to the overheated
having a 200 millivolt (mV) scale to an ohmmeter and the digital display scaled to read a count of 1
SELECT UNIT OF MEASURE.........
2
CALIBRATION PROCEDURE.........
1-2
2
CALIBRATION CHECK...................
4.
OPERATION...................................
selecting either Feet or Meters as the unit of measurement to be digitally displayed.
test slide switch. A programmable Micro Jumper located inside the adapter (see figure 5) is provided for
plug provides the means to connect into a Digital Multimeter. A power ON/OFF slide switch and a power
are provided. The unit is equipped with a standard size double banana plug spaced 3/4" apart. This
x 2 1/2"x 1", weighs 4 ounces and is powered by (1) 9V NEDA Type 1604 battery with a life of app-
cable runs greater than 1999 (feet only), switch to the 2Vdc scale and multiply digital display by X10.
The Protectowire Meter Adapter contains a signal conditioning circuit that converts a digital multimeter
A METER = PROTECTOWIRE METER
)
alarm point on the Protectowire. The max. length of unit measure (Feet or Meters) that can be read
Feed
wires
wires
cable
Feed
3.01
3. OPERATION
2
6.
5.
X
HEAT ACTUATED SPOT
The Meter Adapter was designed to convert
1.02
Meter
identifies the location of the heat actuated
1.03
to a Protectowire Alarm Point Locator Meter.
a digital multimeter (with a 200 millivolt scale
Page 1 of 2
FIG. 4 CLASS A DET. CKT. W/METER CONNECTED.
-
-
+
+
Loop return
Loop out
HEAT ACTUATED SPOT
X
FIRE
ALARM
CTRL
PNL
ZONE
BOX
ELR
BOX
Protectowire
Linear Heat Detector
DCV
200mV
FIG. 3 CLASS B DET. CKT. W/METER CONNECTED
display count in meters
adapter programed to
distance in feet or
Display count represents
2. DESCRIPTION
V
A
DESCRIPTION............................... 1
1. GENERAL....................................... 1
200mV
DCV
point.
Disregard decimal
for X10 reading.
ding and a 2V scale
scale for X1 rea-
(DMM) with a 200mV
Digital Multi Meter
Linear Heat Detector
Protectowire
BOX
ZONE
PNL
CTRL
ALARM
FIRE
1. GENERAL
FIGURE 2 ADAPTER CONNECTED TO DIGITAL METER
FIGURE 1 METER ADAPTER
DCV
V
200
20
2
200mV
PROTECTOWIRE ALARM POINT LOCATOR
OF
F
ON
3.
2.
PAGE
CONTENTS
MODEL APL-90 METER ADAPTER
COM
A Protectowire Alarm Point Locator Meter
781-826-3878 FAX 781-826-2045
40 Grissom Road, Plymouth MA 02360
REV. B 10/1/07
roximately 100 hours. Red and Black 4 foot long test leads with insulated standard size alligator clips
(shorted) spot on the Protectowire linear heat
This Protectowire Alarm Point Locator
1.01
The Protectowire Co. Inc. (See Figure 1 & 6)
on L.E.D. indicator are also provided. On the opposite side of the power switch is a calibration check/
The Meter Adapter Model APL-90 is housed in a high-impact plastic case which measures 3 3/4"
Adapter Model APL-90 is manufactured by
THE PROTECTOWIRE CO. INC.
