description | ranges | options and accessories | technical notes and
manuals
Model 250 &
251 Multi-Function Displays 
Description
The Model 250 & 251 Digital Displays from McMillan Company allow you to use your flow
sensor to its fullest potential. Imagine being able to program a 16-point
calibration curve into a unit (9 points on the 251), and have it display the corrected
values, even retransmitting the linearized signal with the optional analog output card!
Imagine programming in alarm setpoints, with actual relay contacts, with hysterysis
and startup options. The easy to use, menu-driven interface makes programming a
snap, and the bright LED display ensures clarity even under bright-light conditions.
The units even provide a 12.5VDC power source for connecting any McMillan Company
flow sensor, saving you money on additional power supplies! Power cable provided to
power unit from wall outlet.
Ranges
| Model Number |
Inputs Accepted |
Power |
Mounting Depth |
Cutout Dimensions |
| 250 |
0-5 VDC, 4-20 mA |
115 VAC (USA) |
4.25" |
1.77"x3.62" |
| 250E |
0-5VDC, 4-20 mA |
230 VAC (Europe) |
4.25" |
1.77"x3.62" |
| 251 |
Pulse Only |
115 VAC (USA) |
4.25" |
1.77"x3.62" |
| 251E |
Pulse Only |
230 VAC (Europe) |
4.25" |
1.77"x3.62" |
Options and Accessories
250-10 - Analog Output Card for Model 250 or Model 251. Retransmits
linearized signal as 0-5VDC, 0-10VDC, or 4-20 mA (user selectable). Card
is user-installable, and simply snaps into provided slot inside display unit.
250-11- Alarm Output Card for Model 250 or Model 251. Provides 4
relay contacts for high/low setpoints, low flow alarms, etc. Card is
user-installable, and simply snaps into provided slot inside display unit.
Technical Notes and Manuals
Download the Instruction Manual for the Model 250/251
(PDF, 140K).
Check back regularly for updated information.