How to Replenish the Cartridge with Distilled Water


If and when a Water Hydraulic Micromanipulator declines in performance due to a decrease in the volume of water causing a reduction in the movement range of the drive unit, please use the following procedure to replenish the cartridge with distilled water.

Getting Started

Type1 Type2
Type1 Type2
Type3 Type4
Type3 Type4

Replenish the Cartridge with Distilled Water

Replenish the Cartridge with Distilled Water Turn the vernier control knob incorporating the cartridge in need of replenishment fully clockwise so as not to let air in when unscrewing the sealing screw.

Unscrew the sealing screw using a flat-blade screwdriver to detach it.

Unscrew the sealing screw using a flat-blade screwdriver to detach it. Unscrew the sealing screw using a flat-blade screwdriver to detach it.

Replenish the Cartridge with Distilled Water

Turn the control knob clockwise and allow a meniscus of water to form at the injecting nozzle with the aid of surface tension.

If turning the control knob will not allow a meniscus of water to form at the injecting nozzle, allow the syringe (filled with distilled water) to drip water into the injecting nozzle so as to form a meniscus of water.

A meniscus of water formed at the injecting nozzle prevents the entry of air (bubbles).

Replenish the Cartridge with Distilled Water Insert the tip of a syringe filled with water into the injecting nozzle. Applying pressure to the syringe, turn the vernier control knob fully counterclockwise so as not to let air in.
Replenish the Cartridge with Distilled Water

If air bubbles come out in the tube, push or pull the syringe slowly without turning the control knob in order to purge air from the tube. In this procedure, allow the tube connecting part at the cartridge to face downward to facilitate purging air. After purging air, putting pressure on the syringe again, turn the control knob fully counterclockwise in order to replenish with water. Repeating this procedure a few times permits removing air bubbles completely.

Replenish the Cartridge with Distilled Water After injecting water, remove the syringe. Ensure that the injecting nozzle is filled with water full to the brim by surface tension.

Being careful not to admit air, put the sealing screw back on and fasten it securely with a flat-blade screwdriver.

Replenish the Cartridge with Distilled Water Replenish the Cartridge with Distilled Water

Caution!

If the cartridge is overfilled with water, the vernier control knob may feel tighter when turning toward the maximum working range. In that case, drain some water or use the instrument within the working range before the knob gets tight. If the knob is turned forcedly, the diaphragm inside the driving mechanism will break, thus causing the instrument to malfunction.


In Closing

By turning the vernier control knob clockwise close to "0" on the graduated scale, the drive unit should start moving. If it won't move, repeat the above procedures.

If air bubbles come out in the tube, push or pull the syringe slowly without turning the control knob in order to purge air from the tube. In this procedure, allow the tube connecting part at the cartridge to face downward to facilitate purging air. After purging air, putting pressure on the syringe again, turn the control knob fully counterclockwise in order to replenish with water. Repeating this procedure a few times permits removing air bubbles completely.

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