Morehouse Instrument Company, Inc.
1742 Sixth Ave., York, PA 17403-2675 USA
Phone: (717) 843-0081
www.mhforce.com
Page 49
Rev. 3/2022
4215-HS Indicator
Manual
(PM-4101)
Notes:
1. Limits are optically isolated solid state switches that can control AC or DC voltage. Peak blocking voltage is
350V, maximum continuous current is 120 mA.
2. Digital inputs are opto-isolated with internal current limiting resistors. Voltage range is +4 to +22 VDC on the
“HI” input with respect to the “LO” input. Other voltage ranges are possible with added external resistors, con
-
tact Electro Standards Laboratories for details. If isolation is not required these inputs may be operated using
the +12 VDC supplied on pin 26 and the GND on pin 24.
3. The keylock input will be in the “unlocked” state if left unconnected. Tie this pin to GND to “lock” it.
When locked the setup of the Model 4215-HS cannot be changed (you cannot enter Setup mode).
4. The encoder inputs are intended for use with a +12 VDC quadrature encoder. For single ended signaling
use the CHA and CHB pins, the CHA-L and CHB-L pins are provided for differential signals. The encoder can be
supplied with the +12 VDC and GND available on pins 26 and 24.
The Model 4215-HS will also 5 VDC encoder inputs but these MUST be differential. Single ended
+5 VDC inputs are not supported on the standard unit. Options for +5 VDC encoders are available. Pin 26 will
5 VDC for this option and must be ordered accordingly.
Chart Rec. Connector
Note:
1. The source and scaling of ANALOG - OUT is selected through the menus.
2. The HIGH BANDWIDTH - OUT is a buffered analog output permanently connected to the load cell channel.
3. If the 4-20 mA Option is purchased.
DB9 Male
Pin
Signal
2
ANALOG - OUT
1
3
ANALOG - GND
4
HIGH BANDWIDTH - OUT
2
CHANNEL A
5
4-20 mA – OUT
3
CHANNEL A
6
2nd ANALOG-OUT
1
(Optional)
7
4-20 mA – OUT
3
CHANNEL B
8
HIGH BANDWIDTH - OUT
2
CHANNEL B
9
No Connect