0727235-001 VEEDER ROOT, 0727235-001 Datasheet - Page 222

• Manufacturer Part Number: 0727235-001
• Description: Electromechanical Totalizing Counter
• Manufacturer: VEEDER ROOT

Specifications of 0727235-001

• No. Of Digits / Alpha: 5
• Digit Height: 4.7mm
• Mounting Type: Base
• Lead Free Status / RoHS Status: na

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The model PM28S provides six types of input functions in one easy-to-
use, two-channel isolated product.
As an amplifier, it accepts differential line driver, single-ended, and
magnetic signals, converting them to single-ended signals for use with
counters and indicators. This unit is isolated from input to output, and
allows input signals to travel long distances without degradation. The
isolation provides higher noise immunity for the total system.
The input termination is programmable to match most encoders,
pickups and other input devices, including many low level flow meters.
The PM28S also provides a power source for encoders, pickups and
other input devices. Its special MOSFET output will drive up to six
Dynapar MAX or MAXjr products.
The two channels operate independently, so any combination of inputs
can be used. All field connections are made through a terminal strip
which accepts number 22 through 12 AWG.
■ Two independent channels
■ Selectable inputs – differential inputs, 12V inputs, 5V inputs, TTL
■ Transducer supply
■ Selectable line termination
■ Hysteresis on inputs
■ Noise filtering
■ Isolated MOSFET line driver outputs – allows user to drive 6 MAX or
■ Selectable 115/230 VAC operation
PM28S replaces PM21, PM25 and 101UA
inputs, magnetic inputs, 50 mv inputs for low level flowmeters
MAXjr products
Typical Application:
DYNAPAR
Digital Accessories
VEEDER-ROOT • EAGLE SIGNAL • DYNAPAR
brand
Rate Indicator
Computer
Counter
PLC
PM28S Input Amplifier
SPECIFICATIONS
Input Power: 115/230 VAC, ±10%; 50/60 Hz; 6 VA
Input Transducer Power: +12 VDC ±5% @ 150 mA
Isolated Output Power: +12 VDC ±5% @ 150 mA
Transducer Inputs:
Outputs:
Environmental:
Dimensions:
Operating Temperature: 32° to 122°F (0° to 50°C)
Storage Temperature: 0° to 186°F (-18° to 85°C)
Relative Humidity: 0% to 90% non-condensing
12V Inputs: Voltage Range: 12-30 VDC; High Trip Point: 9 VDC min.;
5V Inputs: Voltage Range: 5-12 VDC; High Trip Point: 3.5 VDC min.;
TTL Inputs: Voltage Range: 2.5-5 VDC; High Trip Point: 1.8 VDC min.;
Magnetic Inputs: Voltage Range: 2-30 VPP; High Trip Point: .8 VDC
Flow Meter Inputs: Voltage Range: 50-500 mVP; High Trip Point: 50
V
V
Output Resistance: 15 ohm @ 10 mA typ.
Rise Time: 40 nS max.
Fall Time: 40 nS max.
Peak Output Current: 1.5 A max.
Output Current: 120 mA max.
Output Frequency: 100 kHz max.
Number of MAX or MAXjr loads: 6 per channel
OL
OH
Model No.
PM28S00
Low Trip Point: 3 VDC max.
Low Trip Point: 1.0 VDC max., Input Frequency: 100 kHz max.
Low Trip Point: .8 VDC max.
min.; Low Trip Point: .2 VDC max.
mVDC min.; Low Trip Point: 15 mVDC max; Input Frequency: 100
kHz max.
: 0.5 V typ. @ 70 mA sink
: 11.1 V typ. @ 70 mA source
5.90" O.A.
149.9 mm
129.5 mm
SIDE VIEW
5.10"
Dual universal input
amplifier . . . provides
6 types of input
functions
44.2 mm
1.74"
5.6 mm
0.22"
25.4 mm
Dual Universal Input Amplifier
0.20 Dia.
1.00"
5.1 mm
Description
FRONT VIEW
114.3 mm
127.0 mm
89.9 mm
4.50"
5.00"
3.54"