METER RELAY 2104

Meter Relays in ±1.5% Class </br>for Advancing Power Saving and Automation

Hioki Meter Relays are industrial 1-channel devices to assist in energy saving and automation implementations. The 2104 series are 1-channel ±1.5% class meter relays featuring a sensitive 1 µA, 10 mV DC movement and a customizable scale.

Key Features

  • Ultra sensitive 1 µA, 10 mV DC movement
  • Includes a display lamp to illuminate movement at a glance
  • Relay action delays circuit closure upon power on
  • Both power circuitry and relay built-in

H-type: Lamp lights up and output relay contact operates at deflection of the needle to the right of the setting needle.
L-type: Lamp lights up and output relay contact operates at deflection of the needle to the left of the setting needle.
HL-type: Provides functionality of both H- and L-type models.

Model No. (Order Code)

2104H H type, upper-limit setting
2104L L type, lower-limit setting
2104HL HL type, upper/lower-limit setting
• 1.5% class, Panel size: 104 mm (4.09 in): 2104H, 2104L, 2104HL
• Note: These products are built-to-order. Please confirm specifications and delivery time with your authorized Hioki distributor or reseller.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Indicator shape φ 0.3 mm (0.01 in) pin
Accuracy class [2103H/L/HL]: 2.5 %, [2104H/L/HL]: 1.5 %
Setting accuracy Within 1.5 % of the full scale value (Independent of meter section)
Dead-zone width Within 0.5 % of the scale length
Indicator operating range Within the scale (passing indicator needle system)
Setting indicator
(shape and color)
Spear shape
H indicator (upper-limit side): Red, L indicator (lower-limit side): Green
Setting indicator setting range Within the all range of scale for both H and L
Minimum H/L space Within 3 % of the scale length
Delay time from power on Approx. 2 s
Relay contact structure One transfer for both H and L
Relay output response Approx. 0.5 s (time constant)
Max. current of relay contact 5 A (Under condition of 250 V AC, 30 V DC, resistance load)
Power supply 100 V AC ±10 % (110 / 120 / 200 / 220 / 230 / 240 V, specify at order), 3 VA max.

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