McCrometer EA550 Pulse Transmitter

Specification Sheet
Model:
Description:
Document #:
Rev:
EA550
Electronic Transmitter
24527-17
2.0
3255 West Stetson Avenue
Hemet, CA 92545-7799
General Description:
The electronic transmitter fitted to a propeller meter eliminates the need for both the drive cable and register
head. Digital pulses are generated by a solid state sensor located in the bearing assembly. Pulses are
transmitted to a terminal block housed within a condulet at the top of the flowmeter. The elimination of the
mechanical drive cable allows the electronic meter to achieve a greater accuracy over a wider flow range.
Red
VDC
DC
POWER
SUPPLY
Black
Ground
Typical Meter
Black
Ground
Orange
Pulse Output
Sensor
Sensor Specifications:
Sensor Type:
Supply Voltage:
Supply Current:
Output Pulse:
Output Pulse Level:
Output Type:
Output Current:
Rise/Fall Time:
Operating Temp.:
Transmit Distance:
Hall Effect Digital Sensor
3.8 – 30 VDC, 12 VDC normal
7.5 mA Typical
2 pulse/rev., 50% high, 50% low
Supply Voltage
Sink
20 mA max.
1.5 microseconds maximum
160°F maximum
500 Feet Typical
Pulse Duration
nom.
size
Dial Range
GPM
Gallon
Ratio
Ratio
Mult.
Min. Duration
milliseconds
2
2.5
3
4
6
8
10
12
35 – 250
35 – 250
35 – 250
50 – 800
65 – 1300
70 – 2500
85 – 3000
100 – 4000
600:1
600:1
600:1
2000:1
675:1
400:1
2300:1
1600:1
10
10
10
100
100
100
1000
1000
10.0
10.0
10.0
9.4
17.1
15.0
21.7
23.4
Note:
1. pulse duration in milliseconds = 150000 * Gallons Multiplier / ( Gallons Ratio * full scale GPM)
McCrometer, Inc., 3255 West Stetson Avenue, Hemet, CA 92545-7799 USA
Tel: 909-652-6811 Fax: 909-652-3078 email: info@mccrometer.com Web Site: http://www.mccrometer.com
McCrometer reserves the right to change the Specification without notice.
©2001 by McCrometer, Inc.