To our customers
Sep 2021

Request regarding accuracy check test・calibration of 15ppm bilge alarmThis product is important equipment in order to monitor preservation of the marine environment.
It is also an extra-sensitive measuring device and it might become less accurate due to repeateduse over the years. For accuracy assurance, regular accuracy check test by our company or ourservice agent or check and calibration at our factory is necessary.

1. FOCAS-1500C to which MEPC60(33) is applied.
○ If the unit is more than 5 years old, we recommend you accuracy check test by ourcompany or our company’s service agent or calibration at our factory as early as
possible. In order to keep the accuracy of the unit, you are also recommended to carryout calibration at our factory or accuracy check test by our company’s service agent
once a year or once every two years.
2. FOCAS-1800/2000 to which MEPC107(49) is applied.
○ The following “precision certificates ” are included with all FOCAS-1800 shipments.
For the rule compliance, the certificate validity is within 5 years after issuing date.
Therefore, before it expires, be sure to carry out accuracy check test by our company
or our service agent near you or calibration at our factory. Or the unit may be replaced
by a calibrated 15ppm bilge alarm.
FOCAS-1800 precision certificate

FOCAS-2000 precision certificate○ FOCAS-2000―Replacement of detecting part(Sensor unit) separately sold can beaccepted. As the completion of every five years’ calibration.
○ In order to keep the accuracy of the unit, you are recommended to carry out
calibration at our factory or accuracy check test by our company or our company’s
service agent once a year or once every two years.
★ If you get inadequate accuracy due to status of use, main unit exchange etc will benecessary. Therefore please contact our company or our representative offices in advance.
(Contact information)


Fellow Kogyo Co Ltd.

Tel 813-3800-9777 Fax 813-3800-9770
Website:http://www.fellow-co.com



Our overseas representative offices

Manufacturers of oily water separator in Japan(Contact the manufacturers incurrent use)

Please refer to the above website

Procedure for accuracy check ・calibration of 15ppm bilge alarm―ALL MODELS―
1. To assure accuracy, please request regular accuracy check test by our service agent or ourengineer or calibration at our factory.
2. The following certificate will be issued after accuracy check or calibration.
(Information in this certificate is subject to change without notice.)

Step 1
If certified engineer attend the vessel (or in the workings of the agent’s factory) and accuracyof the bilge alarm stays within the guidelines, he will issue the following temporally
certificate and hand one copy to you.

Please retain this copy on board a ship until you

receive formal certificate sent by our company or our company’s representative offices at alater date.

If accuracy of bilge alarm is outside of correct range, one of the following threeactions should be taken.
1 Part replacement based on our condition (FOCAS - 1500C/2000)
2 Replacement of the complete set (FOCAS – 1800/2000)
3 Calibration and repair at our factory
FOCAS-1500C temporally certificate

FOCAS-1800/2000 temporally certificate

Step 2At a later date, our company or our company’s representative offices will send the following
formal certificate to the designated area.

This certificate should be retained on board a ship

without fail. In case check and calibration was carried out at our factory, we will attach thefollowing certificate to the bilge alarm and send them to the designated area
FOCAS-1500C formal certificate

FOCAS-1800/2000 formal certificate―FOCAS-2000―
Replacement of detecting part (Sensor unit) separately sold can be accepted.
As the completion of every five years’ calibration.
Please request the sensor unit (with precision certificate) to our office or our company’srepresentative offices. We will send the sensor unit with replacement manual, ship’s crew canreplace with new sensor unit.
FOCAS-2000 sensor unit precision certificate

Reference: certificate of certified engineer
The following certificates are issued to the certified engineers of our service agent. According
to the regulation, only certified engineers can carry out accuracy check test.

Start using ID card from January 1, 2023

Accuracy check test performed by the authorized agent
without the certificate or ID card is not valid.