Epson 9840 User Manual

The Model 9840 is a CE compliant and versatile precision instrument intended for the 
digital readout of strain gage sensors such as load cells and torque cells.  Optical 
encoders are also supported. 
 
Here is a quick listing of its features: 
 
• Full 

bi-polar 

6 digit display (

±999,999) using two line, 20 character, vacuum 

fluorescent display for clear, precise indication of measured quantities and limit status. 

 
•  No knobs or dials.  No internal jumpers.  All adjustment and calibration is done using 

user-friendly front panel menus.  Keylock option to prevent accidental or unauthorized 
changes to the unit’s setup. 

 
• Measure 

load and gross weight in pounds, kilograms, Newtons, PSI, MegaPascals, 

kilo-pounds, kilo-Newtons, metric tons, mV/V, or grams.  User defined base area for 
PSI and MPa.  Tare at any time.  The sum of the loads on both channels is also 
availabe. 

 
• Measure 

torque and gross torque in Pound-Inches, Newton-Meters, Ounce-Inches, 

or mV/V. Tare at any time.  The sum of the torques on both channels is also availabe. 

 
•  Capture the load peak and valley, display in pounds, kilograms, Newtons, PSI, 

MegaPascals, kilo-pounds, kilo-Newtons, metric tons, mV/V, or grams.  Reset at any 
time. 

 
•  Capture the torque peak and valley, display in in Pound-Inches, Newton-Meters, 

Ounce-Inches, or mV/V.  Reset at any time. 

 
• Measure 

position and velocity with optional encoder input.  Display in English units, 

metric units, or in percent of a user defined base length.  Reset at any time. 

 
•  Four contact closure Limit switches.  You can set which signal drives the limit (load, 

torque, peak, valley, position, or velocity), normally open / normally closed, set point, 
and manual reset (latched) or automatic reset (not latched). 

 
•  Print current readings of load, torque, peak, valley, position, and velocity using the 

currently selected units at the touch of one button (optional). 

 
•  Automatic identification of calibrated cells with auto-id option. 
 
•  Calibration for cells using manufacturer’s milli-volt per volt calibration factor, 6 point 

mass and milli-volt per volt, 2 or 5 point known mass, 6 point torque and milli-volt per 
volt, 2 or 5 point known torque, or internal precision shunt calibration.  A back panel 
switch allows you to choose between two values used for the shunt calibration so 
there is no need to open the unit. 

 
•  Analog output of any signal (load, torque, peak, valley, position, velocity) with user 

defined scale factor and offset.  Large, buffered 

± 10.00 volt output. 

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