Curtis 840 User manual

CURTIS INSTRUMENTS, INC.
200 Kisco Ave.
Mount Kisco, New York 10549
914-666-2971 Tel
914-666-2188 Fax
www.curtisinstruments.com
53027 Rev. B 7/15

MODEL 840
Serial Data Display
Read Instructions Carefully!
®

SAFETY INSTRUCTIONS
This instrument was manufactured and tested according to the
applicable technical standards. It complies with all the safety
regulations as shipped from the factory.
Installation and startup must be performed by skilled personnel.
Failure to install and operate the unit in accordance with these
instructions may result in damage or injury.
If safe operation of the instrument can no longer be ensured,
stop and secure it against accidental operation.
If instrument failure or malfunction may cause personal injury
or material damage, use additional safety measures such as
limit switches, guards, etc.
Read the Operating Instructions carefully before startup.
Note the safety instructions marked with this
warning symbol in this manual!

TABLE OF CONTENTS
1. Model Encodement 2
2. Technical Specifications
2.1 Electrical 4
2.2 Mechanical 4
2.3 Environmental 5
3. Installation 6
4. Operation 8
5. Troubleshooting 9
6. Maintenance 10
7. Warranty 11

2
Example: Model 840 R 015R S
Housing
Operating Voltage
Temperature Rating
1. MODEL ENCODEMENT
015R=12 VDC
024R=24 VDC
(CAN Version Only)
S=–10°C to +70°C
F=–40°C to +70°C

3
N A 101 0
Logo
LED #
101=3 LED, 12 o’clock LCD
102=6 LED, 12 o’clock LCD
103=3 LED, 6 o’clock LCD
104=6 LED, 6 o’clock LCD
N=Logo
O=No Logo
Backlighting
B=Backlit
Input
A=Spy
C=CAN

4
2. TECHNICAL SPECIFICATIONS
2.1 Electrical Operating Voltage
Operating Current:
015R = 12.0 to 15.0 VDC
024R = 18.0 to 30.0 VDC
2.2 Mechanical
Display
8-character, alphanumeric, dot-matrix LCD
Molex 8-pin Mating Information:
Connector: 39-01-2085
Terminal (18–24 AWG): 39-00-0039
Terminal (16 AWG): 39-00-0078
15V Models 24V Models
Signal Name Typical
(mA)
Max.
(mA)
Typical
(mA)
Max.
(mA)
B+ Heater (+24V) 133 180 133 180
B+ Heater (+36V) 141 190 141 190
PWRIN (no backlight) 26 39 26 39
PWRIN (w/ backlight) 43 66 43 66

5
Panel Cutouts
52mm, 2-1/16”
2.3 Environmental
Operating Temperature Range
–10°C to +70°C (Standard Model)
–40°C to +70°C (Freezer Model)
Enclosure Protection
IP65 (Face), IP40 (Rear)
Shock & Vibration
Meets SAE J 1378 (Jul 98)

6
3. INSTALLATION
Model 840 fits into a dash-panel cutout
measuring 2-1/16” (52mm)
Pin
Number Function
"Spy" Version CAN Version
1No Connect CAN Hi
2No Connect CAN Lo
3B+ (Heater) 24VDC B+ (Heater) 24VDC
4B+ (Heater) 36VDC B+ (Heater) 36VDC
5B+ (Supply) B+ (Supply)
6Rx (Receive Data) No Connect
7No Connect No Connect
8 B– B–

7
58.4
(2.30)
43.6
(1.71)
MAX.
8.9 MAX.
57.8
(2.28)
MAX.
42.5
(1.67)
MAX.
51.5
(2.03)
MAX.
MAX
CURTIS LOGO OR
CUSTOM LOGO
(IF REQUIRED)
LED1
SERVICE INDICATOR
(RED LED)
LED2
BDI INDICATOR
(YELLOW LED)
LED3
HOURMETER INDICATOR
(GREEN LED)
LCD 1
8 ALPHA-NUMERIC
CHARACTER, DOT-MATRIX
LCD DISPLAY
85
41
LABEL
"U"CLAMP FOR .03 TO .25
PANEL THICKNESS
BLACK BEZEL