S O L I D S TAT E B AT T E R Y
‘ F U E L’ G A U G E & H O U R M E T E R
MODEL 803
FEATURES
‘Fuel’ Gauge Features
•
Multicolor 10-bar LED displays state of charge (5 green,
3 yellow, 2 red LEDs).
•
Flashing red LED signals “energy reserve” alarm at
70% discharged.
•
Double flashing red LEDs signal “empty” alarm at
80% discharged.
•
Normally closed relay opens at 80% discharge for lift lockout.
This unique holding relay will only lock out at the end of a
lift cycle.
•
Recognizes improperly charged battery.
•
Keyswitch activated LED display (Fuel gauge electronics are
energized as long as they remain connected to the battery).
•
Wide range adjustable discharge profile.
•
Dual reset methods in each gauge: Open Circuit Reset for
vehicles that exchange batteries and Charge Tracking Reset
for vehicles whose batteries remain connected to the gauge
DESCRIPTION
Curtis Model 803 combines in one instrument a completely
solid state battery discharge indicator, an LCD hour meter and
lift lockout, housed in a 52mm case. Void of moving parts, this
combination instrument is exceptionally reliable even in severe
operating environments.
during recharge.
Hour Meter Features
•
Monitors use-time throughout the equipment’s lifespan.
•
Records and displays up to 99,999.9 hours on its LCD, rolls
over and continues to count and display.
•
Hour meter LCD remains on as long as battery is connected.
•
Stores latest total in EEPROM nonvolatile memory, without
need of power.
•
Operates and displays in temperatures from –40˚C to +65˚C
under harsh conditions of vibration, shock, moisture and dust.
System Voltages
Available in single voltages from 12 VDC to 80 VDC, or in dual
voltage of 24/36, 36/48, 24/48 or 72/80 VDC. Operating
range is ± 25% of nominal voltage.
APPLICATION
Model 803 is a combination gauge ideally suited for
electrically powered vehicles.
www.curtisinstruments.com
MODEL 803
SPECIFICATIONS
•
Hour meter accuracy: +0.1%
•
Operating Temperature:
–40°C to +65°C
•
Shock & Vibration:
Meets SAE J 1378
•
Humidity:
95% RH (non-condensing) at +38°C
•
LCD Character Height:
5 mm
•
Mating Connector:
Molex 8 pin, 39-01-2085
•
Discharge Range:
Empty from 1.57 volts/cell to1.93 volts/cell.
•
Reset Levels:
Open circuit reset (OCR)at 2.09 volts/cell.
Charge Tracking Reset (CTR) tracks battery recharge at 2.35
volts/cell full and 2.10 volts/cell empty.
MODEL NUMBER DESCRIPTION
803 RB
Case Style
RB=Round
(52mm)
w/black bezel
2448
Voltage
12
1224
2436
2448
3648
7280
B
Reset Type
/Level
C
Discharge
Profile
J
Output
J=N.C. holding relay
Contact rating=3 Amps
when continuously closed,
1 Amp when opening.
K=N.C. relay
Y=N.O. relay
contact rating=1 Amp
3zzO
OEM
Code
(2zzO and 1zzO
are earlier versions)
O=Curtis logo
B=CTR/OCR (3zzO)
C=Adjustable
=HVR/OCR (1zzO/2zzO)
1.57vpc to
where
1.93vpc at empty
OCR=2.09vpc
H V R =2.35vpc
C T R =2.35 vpc full,
2.10 vpc empty
DIMENSIONS m m
Thumbnut 4mm
Washer 4mm
43.6 Max
"U" Clamp for 0.8 to 6.4
Panel Thickness
Black Bezel
0
1/2
- +
Fuel Gage "LED"
2 Red, 3 Yellow, 5 Green
Bar Height 5mm
1
51.8 Max
M
L
K
N
O
P
Q
R
S
T
U
DISCHARGE
42.5 Max
CONNECTOR PINOUT
Pin No.
1
2*
3
4
5
6
7
8
Relay Option J
HRM (–)
Keyswitch
Relay ARM (+)
Relay N.C. (–)
Common (B–)
HRM (+)
B+ Low
B+ High
57.8 Max
8.9 Max
Hour Meter "LCD"
Character Height
5mm
Note: In addition to a “U” clamp and thumbnuts/washers shown in the drawing,
individually packed units are provided with a mating connector and female pins.
Bulk packed units are provided with a “U” clamp and hex nuts/washers only.
*Keyswitch turns on “fuel gauge” display and enables the
hour meter. To accumulate time in the hour meter one or
both of the HRM+ and HRM– inputs must be connected.
WA R R A N T Y
Two year limited warranty from time of delivery.
is a trademark of Curtis Instruments, Inc.
Specifications subject to change without notice
©2013 Curtis Instruments, Inc.
50024 REV F 3/13
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