




Dwyer Instruments MPM-240 | Multi panel meter | 12-24 VDC | 4 relays | No transmitter
This general purpose process meter, model MPM-240 Dual Line Configurable Panel Meter, may be set to accept an input signal of 0-10 V or 4-20 mA in the field. It powers the transmitter using 24 VDC. The process variable can be shown on the top line of the dual line display, while the engineering units can be shown on the bottom line. Alternatively, in dual scale mode, the process variable can be shown on the upper display in one unit (such as height) and on the lower display in another unit (such as volume). Along with 32 point linearization, the meter also features an automated Round Horizontal Tank function.

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- Specifications
- Features
- Downloads
Accuracy | +/-0.03% of calibrated span +/-1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span |
Approvals | CE, RoHS, cUL, UL |
Connection | Electrical: Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters |
Decimal Points | Five positions, user selectable |
Display | Dual-line 6-digit display, 0.60 in and 0.46 in |
Electrical SPDT Switch Ratings | 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external rated 3A @ 30 VDC and 125/250 VAC resistive load 1/14 HP @ 125/250 VAC for inductive loads. |
Enclosure Rating | NEMA 4X, IP65 front |
Input Impedance | 50 to 100 ¢ž¦ |
Input | 0 to 20 mA, 4 to 20 mA, 0 to 5V, or +/-10V inputs A 85-265 VAC or 12/24 VDC |
Manufacturer | Dwyer Instruments |
Maximum operating temperature | Operating: -40 to 149°F (-40 to 65°C) Storage: -40 to 185°F (-40 to 85°C) |
Output Signal | 4 to 20 mA |
POWER CONSUMPTION | 85 to 265 VAC models: 200 mA @ 24 VDC 12 to 24 VDC models: 100 mA @ 24 VDC Second supply with output 2 models: 40 mA @ 24 VDC |
Power | 85 to 265 VAC 50/60 Hz, 90 to 265 VDC, 20 W max or 12 to 24 VDC +/-10%, 15 W max |
Software | Programming: Free, USB based. Resident on meter, nothing to download |
Time Delay | 0 to 999.9 sec, on & off relay time delays; programmable and independent for each relay. |
Type | Multi Panel Meter |
Weight (for shipping) | 9.5 oz (269 g) |
- Password protection with three tiers.
- Calculus for flow and circular horizontal tanks.
- Configurable exponent, square root, or 32-point linearization.
- Control of many pump alternators.
- Rate expressed in terms of units per minute, hour, day, or second.
- Total, grand total, or grand total that cannot be reset.
- Options for isolated 4–20 mA outputs and two or four relays.
- Extension modules provide digital I/O and an external 4-relay.
- Serial connection possibilities include RS-232, RS-422, and RS-485.
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