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- Page 1 Operation Manual – PN 0040032001CS Mensor Model 9424 Special Application Pressure Controller Mensor Model 9424 Special Application Pressure Controller Version 2.04.00 To 2.04.02 Mensor Model 9424 Special Application Pressure Controller Manual PN 0040032001CS...
- Page 2 Table of Contents General Description ......................1 Precautions ........................2 Unpacking and Initial Setup .................... 3 Pressure Connections ...................... 3 Electrical Connections ....................4 Operation ........................... 4 Front Panel Operation ....................5 Keypad Entry Function ....................5 Jog Functions ......................6 Control Output Drivers ....................
- Page 4 0.010 % of span and a precision of 0.003 % of span with a 180-day recommended calibration interval. (The Series 6180 can be offered in certain ranges with higher accuracy and a 365-day recommended calibration interval.) The 9424 is housed in an aluminum chassis having dimensions of 14.02” (35.61 cm) wide, 7.55” (19.2 cm) high, and 12.42”...
- Page 5 Baud of 57600, 8 data bits, 1 stop bit, and no parity. Precautions: 1. The 9424 has a maximum supply pressure rating of 165 psi gauge for low- pressure instruments and 1500 psi gauge for high-pressure instruments and a recommended supply input of 110 % of the maximum installed transducer range.
- Page 6 The Model 9424 should be installed on a level surface with adequate airflow to keep the system within its 15 to 45 C optimum operating temperature range.
- Page 7 Long hose lengths or small hose diameters serving large volume loads may require a 9424 with separate measure and control ports and the use of a Remote Pressure Sense Manifold. (Consult the factory if the unit has difficulty controlling large volumes.)
- Page 8 ‘X’ key deletes the entire entry. Once the correct value is entered, the ‘=’ key is used to accept the value and display it in the actual Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 9 ON. When ON, the output provides 12 volts DC between the + and – pins on the rear panel. The maximum Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 10 1 Amp current (sink or source). Mensor can provide attachments that allow the 12-volt dc drive signals to switch larger AC power loads such as vacuum pumps, compressors, and AC enunciators up to 20 amps. Mode Selection and Display: In the center of the screen near the left side are the mode selection buttons.
- Page 11 Setup – Transducer Multiplier (Cal Span) This entry displays the transducer calibration span factor. The span is a multiplier (normally a non-dimensional value of 1.0000) that adjusts each reading. This field must Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 12 9424 use standard RS-232 serial communications. The protocol is 19200 baud, 8 data bits, 1 stop bit, and no parity. The 9424 will accept upper, lower, and mixed-case ASCII commands. All commands should be terminated with a linefeed character or a carriage return character.
- Page 13 Model 9424 Spec App Controller” Send: “SN?” Returns the serial number of Returns: “990354” the 9424. Send: “Stable?” stable? Returns the control stable flag, Returns: “HI”, an indication of control value Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 14 Send: “span= 1.0” span= With the proper password, allows the current span Returns: multiplier value to be changed on the internal transducer. See CPW= command to enter the password. Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 15 EchoOn at power up. Send: “ECHOOFF” echooff Turns off command echo for remote serial communications Returns: port. Can be turned on with the EchoOn command or by cycling the unit power. Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 16 Send: “rate?” rate? Returns the current rate of change in pressure in displayed Returns: "12.3456" units/second. Send: “rateon” rateon Turns on rate control Returns: Send: “rateoff” rateoff Turns off rate control Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 17 This is the number of seconds before reaching the setpoint Returns: "4.0000" that the control rate will start to decay (Default Value= 4). To speed up control make this number smaller. To reduce overshoot or Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 18 A typical operation would consist of setting up the supply, measure, and control hoses to the appropriate ports. If power is not applied to the 9424, it should be powered up. The unit will initialize into the measure mode with the initial control set point equal to the first measured pressure reading.
- Page 19 MEASURE Port on the rear of the instrument and the 9424 needs to be powered up and left in the MEASURE mode of operation. Calibration checks can be performed with a precision pressure standard.
- Page 20 Tuning the Model 9424 Pressure Controller When tuning the Model 9424, there are several variables to consider such as the DUT volume, pressure range and control rate from one setpoint to the next. To operate the Model 9424 efficiently, users must tune the machine to match their performance requirements.
- Page 21 Edit Setup menu on the touch screen. Setting this value too high will exacerbate any overshoot or stability problems. If the itime value is too low, it will not follow this rate control parameter. stablewindow= Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 22 .01 PSIA. Storage and Transportation: The 9424 can be stored for a reasonable amount of time without any adverse effects. Storage temperature should not exceed 70 C or drop below -20 C. The humidity should not be so high as to cause condensation in the system.
- Page 23 Typically less that 0.001% of Span Control Volume: Tuned for volume up to 0.5 to 5 liters or per customer requirements Overshoot: < 1% f.s. into a 2 liter volume typical Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 24 Front Panel User Interface: 8.4” color LCD display with 8 wire resistive touch screen. Remote Interface: RS-232 Serial Communications at 19200 baud, 8 data bits, 1 stop bit and no parity Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 25 Shock / Vibration: 2 gravities maximum per MIL-T-28800 Operating Environment: 5 to 95% RH non-condensing Pressure Media Clean, dry, non-corrosive, non-combustible, non-oxidizing gases. Dry Nitrogen recommended. Not suitable for oxygen use. Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
- Page 26 Appendix: Mensor CPT6180 Digital Pressure Transducer Manual Mensor Model 9424 Special Application Pressure Controller 0040032001CS May 25,2023...
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