Trumeter 7111HV Data Sheet

The new 7111 series counter is feature packed
and with a price performance ratio unrivalled,
suitable for thousands of applications.

• Use of the latest CMOS circuitry achieves 

an expected battery life of 10 years.

• Connection using built in screw terminals 

(on all models).

• 9mm black high contrast LCD display.
• Backlight (externally powered) 5VDC.
• Counting up to 10kHz. (7111)
• 7111QUAD version quadrature signal 

compatible. This permits add / subtract 
counting in step with forward / reverse 
motion without count loss or gaining 
spurious counts.

• 7111HV permits triggering from any voltage 

between 10-240VAC or 5-110VDC ±10%.

• Contact closure/open collector low speed 

count input with integral de-bounce 
circuitry (7111 model).

• Choice of mounting available, front panel 

with supplied bezel or rear mounting clip.

• Front panel can be sealed to IP65.
• Installation is simplified - all models have 

screw connections on rear for quick and 
simple connection.

• UL and cUL pending.

Battery Non-replaceable Lithium battery,
expected life10 years at 20°C
Display 8 digit black LCD, 9mm characters,
leading zero blanking, backlight requires external
5VDC supply. Configurable decimal place upto 3
dec place (jumper link configured).
Count Range 99999999 - rollover to 0
Connections Finger-proof screw connections for
cables up to 1.5mm

2

Operating temperature -10°C to +60°C 
Storage temperature -20°C to +60°C
Altitude Up to 2000m 
Relative Humidity 80% max up to 31°C,
decreasing to 50% max at 40°C
Sealing IP65/NEMA4X
Mounting Either with clip mount supplied or two
front screws with bezel supplied.
Manual Reset Enable Configured by jumper link
Packed Weight 62 grammes
Box Dimensions 56mm x 44mm x 62mm

Power Supply (7111QUAD)
External power supply to power internal count
input circuits 10-30VDC
External Reset (7111 | 7111QUAD)
Contact closure/open collector, negative edge
triggered, 0.7v threshold, 15mS minimum closure
time.
Direction Input (7111)
Connection or electronic input TTL/CMOS
compatible. Add=no connection or >2.4v (logic
1); Subtract=connect to COMMON or <0.7v (logic
0). Direction input must precede count input by
5µS (minimum) for valid operation.
Low Speed Count Input (7111)
Contact closure/open collector with integral de-
bounce circuitry. 30Hz maximum, negative edge
triggered, 0.7v threshold, 15mS minimum closure
time. Max 18VDC.
High Speed Count Input (7111)
Electronic input 10kHz maximum, negative edge
triggered, 0.7v threshold 50µS minimum pulse
length, TTL/CMOS Compatible. Max 18VDC.
Quadrature Signal Inputs (7111 QUAD)
Electronic input 2.5kHz maximum, negative edge
triggered, 0.7v threshold 200µS minimum pulse
length, TTL/CMOS Compatible.
External Reset (7111HV) 
10-110VDC ±10%, 10-240VAC ±10%, 50mS
minimum length.
Direction Input (7111HV)
Connection or electronic input TTL/CMOS
compatible. Add=no connection or >2.4v (logic
1); Subtract=connect to COMMON or <0.7v (logic
0). Direction input must precede count input by
5µS (minimum) for valid operation. Max 18VDC.
Count Input (7111HV)
10-110VDC ±10% , 10-240VAC ±10%, 50mS
minimum pulse width, 10Hz.

• Replacement for electro-mechanical counters.
• Applications where external power is not 

readily available.

• Position, length, rotation and distance 

measuring applications.

• Event counting

Panel cutout 45mm x 22.5mm ( 0.771” x 0.885”)

Order by type numbers of counter:
7111

Totalising counter

7111QUAD  Up/Down with quad IP’s
7111HV

Counter with HV inputs

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Trumeter Company Ltd | Manchester | M26 1NX | UK. Tel: +44 (0)161 724 6311 | Fax: +44 (0)161 724 9455 | E-mail: sales.uk@trumeter.com