Features: 
 
    - Advanced frequency meter and generator with three output waveforms from 0.1 V to 24 V amplitude
 
    - Measure or source 0.01 Hz to 50 kHz
 
    - CPM, CPH and totalizing counter
 
    - Sine, square and triangular waveforms mA measure, switch test and 24V loop power
 
    - Large backlit display, menu driven interface
 
    - HART® loop resistor
 
    - Robust and weatherproof
 
    - Compact, simple to use, easy to carry
 
    - Convenient, one-handed operation
 
    - Secure grip, impact resistant, elastomer protected
 
    - Plug/play connector for Intelligent Digital Output Sensors™(IDOS) Universal Measurement Modules
 
 
 
 
Specifications: 
DPI 841 Frequency Loop Calibrator 
    
        
            | 
             Automatic Trigger 
             | 
            
             Detects the best value regardless of waveform or amplitude 
             | 
         
        
            | 
             Frequency Scaling 
             | 
            
             Reads in process units; e.g. flow or revolutions/minute 
             | 
         
        
            | 
             Programmable Step and Ramp Outputs 
             | 
            
             Simplify calibration and diagnostics 
             | 
         
        
            | 
             Adjustable “Nudge” Value 
             | 
            
             Provides an incremental output for setting switches, relays, trips and alarms 
             | 
         
        
            | 
             Advanced Features 
             | 
            
             Hold, maximum/minimum/average (with time stamp), scaling, tare (offset) and damping filter facilitate system checks and troubleshooting 
             | 
         
    
 
 
DPI 842 Frequency Loop Calibrator 
    
        
            | 
             Dual Readings 
             | 
            
             Provides simultaneous frequency output and mA measurement for transmitter and loop maintenance 
             | 
         
        
            | 
             24 V Power Supply 
             | 
            
             Energize transmitters and control loops 
             | 
         
        
            | 
             Automatic Switch Test 
             | 
            
             Captures open/closed trip values providing a fast and highly accurate “safety system” check 
             | 
         
        
            | 
             HART Resistor 
             | 
            
             Can be switched into the loop when required for a HART digital communicator and avoids the inconvenience of carrying a 250 O resistor 
             | 
         
    
 
 
IDOS Flexibility 
    
        
            | 
             Intelligent Digital Output Sensor (IDOS) 
             | 
            
             Universal Pressure Modules are available from 10 inH2O to 10,000 psi (25 mbar to 700 bar) 
             | 
         
        
            | 
             Total Flexibility 
             | 
            
             Means IDOS modules can be used with any compatible instrument; for example, a DPI 842 frequency loop calibrator can become a fully featured pressure calibrator 
             | 
         
        
            | 
             Plug and Play 
             | 
            
             Modules are interchangeable between instruments, requiring no set-up or instrument calibration. 
             | 
         
    
 
 
 
 
  
                             |