2
Display Range: 0 to 99999
Overflow/Underflow Indication: Display flashes “
”
Maximum Count Rate:
All Count Sources except Input B: 10 Hz
Input B Count Source:
With Timer Input Filter ON: 10 Hz
With Timer Input Filter OFF: 500 Hz
5. TIMER SIGNAL INPUTS (INP A and INP B)
DIP switch selectable pull-up (7.8 KΩ) or pull-down (3.9 KΩ) resistors
determine active high or active low input logic.
Input A Trigger levels: V
IL
= 1.25 V max; V
IH
= 2.75 V min; V
MAX
= 28 VDC
Input B: Trigger levels: V
IL
= 1.0 V max; V
IH
= 2.4 V min; V
MAX
= 28 VDC
Inputs A and B:
Timer Input Pulse Width: 1 msec min.
Timer Start/Stop Response Time: 1 msec max.
Filter: Software filtering provided for relay or switch contact debounce.
Filter enabled or disabled through programming. If enabled, results in
50 msec start/stop response time for successive pulses applied to the
same input terminal.
6. RESET/USER INPUT Programmable Function Input:
DIP switch selectable pull-up (7.8 KΩ) or pull-down (3.9 KΩ) resistor
that determines active high or active low input logic.
Trigger levels: V
IL
= 1.0 V max; V
IH
= 2.4 V min; V
MAX
= 28 VDC
Response Time: 10 msec typ.; 50 msec debounce (activation and release)
7. COMMUNICATIONS:
RS485 SERIAL COMMUNICATIONS
Type: RS485 multi-point balanced interface (isolated)
Baud Rate: 300 to 38400
Data Format: 7/8 bits; odd, even, or no parity
Bus Address: 0 to 99; max 32 meters per line
RS232 SERIAL COMMUNICATIONS
Type: RS232 half duplex (isolated)
Baud Rate: 300 to 38400
Data Format: 7/8 bits; odd, even, or no parity
8. MEMORY: Nonvolatile E
2
PROM retains all programming parameters and
timer/count values when power is removed.
9. OUTPUT:
Relay: Form C contacts rated at 5 amps @ 120/240 VAC or 28 VDC (resistive
load), 1/8 H.P. @ 120 VAC (inductive load)
10. CONNECTIONS: Internal removable terminal blocks
Wire Strip Length: 0.4" (10 mm)
Wire Gage Capacity: 24-12 AWG (0.51-2.05 mm) copper wire, 90°C rated
insulation only
Torque: 5.3 inch-lbs (0.6 N-m) max
Cable Diameter: Outside diameter must be 0.181" (4.6 mm) to 0.312" (7.9
mm) to maintain Type 4 rating of cord grips.
11. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: 0 to 65 °C
Storage Temperature Range: -40 to 70 °C
Operating and Storage Humidity: 0 to 85% max. RH (non-condensing)
Vibration to IEC 68-2-6: Operational 5 to 150 Hz, 2 g (1 g relay).
Shock to IEC 68-2-27: Operational 30 g (10 g relay).
Altitude: Up to 2,000 meters
12. CERTIFICATIONS AND COMPLIANCES:
CE Approved
EN 61326-1 Immunity to Industrial Locations
Emission CISPR 11 Class B
Safety requirements for electrical equipment for measurement, control, and
laboratory use:
EN 61010-1: General Requirements
EN 61010-2-030: Particular Requirements for Testing and Measuring
Circuits
RoHS Compliant
UL Listed: File #E137808
Type 4X Indoor/Outdoor Enclosure rating
IP65 Enclosure rating
13. CONSTRUCTION: Aluminum enclosure, and steel side panels with textured
black polyurethane paint for scratch and corrosion resistance protection. Meets
Type 4X/IP65 specifications. Installation Category II, Pollution Degree 2.
14. WEIGHT:
LD2T06P0 - 4.5 lbs (2.04 kg)
LD4T06P0 - 10.5 lbs (4.76 kg)
1.0 InstallIng the Meter
INSTALLATION
The meter meets NEMA 4X/IP65 requirements when properly installed.
INSTALLATION ENVIRONMENT
The unit should be installed in a location that does not exceed the operating
temperature. Placing the unit near devices that generate excessive heat should be
avoided. The unit should only be cleaned with a soft cloth and neutral soap
product. Do NOT use solvents.
Continuous exposure to direct sunlight may accelerate the aging process of
the front overlay. Do not use tools of any kind (screwdrivers, pens, pencils, etc.)
to operate the keypad of the unit.
MOUNTING INSTRUCTIONS
This display is designed to be
wall mounted or suspended
from a ceiling truss or other
suitable structure capable
of supporting the LDT.
Caution should be exercised
when hanging the display to
provide for the safety of
personnel. If hanging the
LDT, run the suspension
cables (or chains) through the
mounting bracket holes. For
wall mounting use #10-32 size
bolts.
MOUNTING HOLE (.281")
MUST BE
CONNECTED TO
TERMINAL #3 (TBA)
MODEL NO. DESCRIPTION PART NUMBER
LD
2.25" High 6-Digit Red LED Timer/Cycle Counter w/ Relay Output &
RS232/RS485 Serial Communications
LD2T06P0
4" High 6-Digit Red LED Timer/Cycle Counter w/ Relay Output &
RS232/RS485 Serial Communications
LD4T06P0
LD Plug Cord Grip Plug for LD models * LDPLUG00
* Required to maintain Type 4X/IP65 specification, if end plate cord grip does not have cable installed.
ORDERING INFORMATION
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