Name: Contrec 104D.1
Brand: Contrec
SKU: Contrec 104D.1
Availability: InStock

The Contrec 104D.1 is the panel-mount version of the 104D Flow Rate Totalizer, fitted with mounting brackets so it installs directly into a control panel face rather than in a wall-mount field enclosure. It keeps every function of the standard 104D: a loop-powered pulse-to-4-20mA retransmit totalizer that takes a pulse or frequency signal from a turbine, positive displacement, or paddlewheel flowmeter and converts it into both a live rate display and a proportional 4-20mA output for your control system.

Because the electronics draw their power from the same 4-20mA loop they output to, no separate power wiring is needed, which keeps panel installation simple and tidy. A 10-point linearization curve corrects the input across the full flow range, so the displayed rate and the retransmitted signal stay accurate even where the flowmeter’s own output isn’t perfectly linear. Dual alarm outputs and a totalizing register round out the feature set, giving panel builders a compact, self-contained flow instrument that fits neatly alongside other panel-mounted indicators.

Contrec Model 104D.1 (Panel Mount) Technical Specifications
● POWER SECTION
Power Input Requirements	Loop Powered: 4 to 20 mA DC current loop connection. Voltage Drop: 4.3 Vdc maximum loop drop threshold. Internal Backup: 2 × Lithium batteries installed as standard; provides up to a 2-year autonomous local display lifespan.
Data Security Retentivity	Integrated non-volatile flash memory permanently stores all configuration parameters, tag constants, resettable totals, and accumulated totals during full loop power blackouts.
● INPUT SECTION
Flowmeter Signal Input	Single digital flow input channel accepting pulse or frequency train inputs. Compatible Sensors: Open Collector, Reed Switch, TTL Logic, Magnetic Pickup, Namur Proximity, or Paddlewheel flow sensors.
Frequency Bandwidth Range	0.1Hz minimum baseline cutoff up to 2kHz maximum high-speed input processing frequency.
K-Factor Scaling Matrix	Fully programmable pulses-per-unit metric system supporting a 10-point non-linear flow linearization curve mapping.
● OUTPUT SECTION
Analog Output Loop	2-wire 4 to 20 mA DC current loop output; tracks real-time flow rate with programmable zero and full scale span mapping.
Digital Output Channels	Two separately opto-isolated solid-state open collector transistor outputs: Output 1 (Pulse): Scaled pulse output channel with software-defined resolution and pulse width. Output 2 (Alarms): Configurable as a combined High Flow Rate and Low Flow Rate limit alarm output. Electrical Rating: Max. 30 Vdc switching voltage, 100mA maximum current capacity in the active “ON” state.
Local Operator Display	High-contrast dual-row alphanumeric LCD display showcasing simultaneous Flow Rate, Resettable Batch Total, and non-resettable Accumulated Total in selected engineering units.
● PERFORMANCE
Totalizer Accuracy Class	Better than ±0.05% of reading for all internal mathematical accumulation calculations.
Analog Loop Precision	±0.1% of full scale range calibration accuracy under reference conditions.
● PHYSICAL
Enclosure Shell Design	Field-mounting enclosure layout molded from heavy-duty, impact-resistant polycarbonate polymers.
Mounting Configuration	Versatile architecture supports flush panel mounting, wall surface installation, or ruggedized pipe track attachment.
Operator Input Interface	Ergonomic elastomeric tactile keypad featuring positive snap-action feedback designed to support glove-wearing operation.
● STANDARDS CONFORMITY
Environmental Protection Class	IP67 dust-tight and weatherproof certified enclosure containment structure (Fully matches NEMA 4X compliance criteria).
CE Certification Baseline	Conforms fully to standard European community electromagnetic compatibility (EMC) and low-voltage electrical safety directives. Manufactured under a certified ISO 9001 quality framework.